Carpet-cleaner.



F. J. QUIST.

CARPET CLEANER.

APPLICATION FILED OCT. 13, 19l3.

1,168,225. Patented Jan. 11, 1916.

2 SHEETSSHEET ln I Z5z 2z hr; g m flaw/J40! I Ma 9f] Jodi/ M SWSMMT PHco., WASHINGTON D c F. 1. QUIST.

CARPET cue/men. APPLICATION FILED OCT. 18' 1913.

Patented Jan. 11, 1916.

2 SHEETS-SHEET 2.

1. N Wr/ Z Witzzak/an UNITED STATES PATENT OFFICE.

FRANK J. QUIST, QFWORCEST-ER, MASSACHUSETTS.

CARPET-CLEANER. I 1

To all whom it may concern:

Be it knownv that I, FRANK J. QUIsT, a citizen of the United States,residing at Worcester, in the county .of Worcester and 5 State ofMassachusetts, have invented a new and useful Carpet-Cleaner, of whichthe following is a specification. v

This invention relates to a carpet cleaning device and the principalobjects thereof are to provide a device of this character in a small andcompact form, arrange the'parts in such a way that they willoperatexeasily and without undue friction, and especially toprovide forseparating the dust in such a way as to leave the dust in an open-toppedcasing or frame so that it can beemptied expeditiously and in a cleanlyway.

The invention has for one of its objects the doing away with theordinary dust bag which has to be handled in order to be emptied, and tosubstitute therefor a rigid casing which the operator can grasp at oneend at a place where there is no dust, and in fact to provide animproved construction ing device of any kind that has to be handled orcan be handled independently. of the nozzle.

Another object of the invention is to provide an improved constructionin which the part containing the suction creating devices is an entirelyseparate element from that containing the dust separating devices andcan-be handledymanufactured and repaired separately.

Another object of the invention is to provide a device'of this characterin which a rotary brush can becornbined with the suction features of thecleaner in a simple manner and without adding greatly to the expensethereof, and to provide means for insuring that the dust is entirelyseparated from the air before it is discharged from the machine.-

Further objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings in which Figure 1 isa side view of a preferred form of the invention; Fig. 2 is a sectionalview on a central plane parallel with the sides shown in Fig. 1.; Fig.'3 is a plan of partof the lower casing removed from the upper; Fig. 4is a side view showing how the two parts are separated in practice, andFig. 5 1s. a view slmllar to F 1g. Zshowmg a in which/there is no screenor dust separatlows.

Specification of Letters Patent. iPatent'gdJan 11, 1916 Applicationfiled October'lS, 1913. Serial No. 796,032. I

modified form coming within the scope of the invention.

Referring to the first four figures, the device, is shown in two parts Aand B. Each of these parts is shown in the form of a casing or frame.The upper part B is provided with any ordinary type of suction creatingdevice such as a bellows 10 and with the usual operating Wheels 11 on acrank shaft 12 connected by links 13 or the like with the bellows foroperating thesame. These wheels are located at one end of the entiredevice and support that end. This part B is also provided with a handle14 for operating the machine.

The casing B is provided with a bottom wall 15 having ports 16 and 17.This bottom wall constitutes the bottom of the bellows and the port 16is the inlet while the port 17 is the exhaust port. It is provided withautomatic spring valves 18 and 19 vrespectively which operate in anobvious manner.

The part A of the deviceis shown in the figuresis provided with a nozzle20 at one end for. supporting that end of the machine. This nozzle has apassage 21 extending up wardly therefrom and separated from the frontchamber 22 by a wall 23 which does not extend quite to the top of thecasing or chamber.

It willbe seen that when the parts are assembled in a manner that willbe described hereinafter, the operation of the bellows will cause air tobe drawn into them through the port 16 from the nozzle. Any heavyparticles of dust and other substances that do not enter the bellowswill be deposited in'the bottom of the chamber 22 instead of remainingin the nozzle. This chamber is located outof the path of air from thenozzle to the bellows sothat if any particles are left in it they willnot be again disturbed by the air. No means is provided for separatingthe. dust before the current of air and dust passes into the bellows,and this current is unrestricted. The dust laden'air passes into thebellows and out through the port 17 into a dust separating chamber 24:which is located between the chamber-22 and the wheels 11 and obviouslyalso is located under the bel- This chamber is entirely separated fromthe chamber22-by amiddle wall 25 and is provided with an external wall,

shown in the drawings as a bottom one, formed of ascreen device 26. Thisis made with depressions and elevations as indicated for the purpose ofincreasing the area through which the air is forced out and for thefurther purpose of providing a passage for air after a considerablelayer of dust is deposited in the lower portions. By discharging the airat the bottom near the floor, any dust that might escape on account ofthe wearing of the parts will be deposited directly on the floor, whereit can be taken up by the nozzle, instead of being forced out into theair of the room.

It will be obvious that the two chambers 22 and 24: are open at the topso that when the parts A and B are assembled they will communicateproperly with their respective ports in the bottom of the bellows. Thebottom of the bellows is preferably provided with packing 27 in positionto come into contact with all the vertical walls of the lower part A.

For the purpose of connecting the two parts of the device together in areadily adjustable manner, one part, preferably the part B, is providedwith a plate 30 having a headed stud 31 fixed thereon and provided withan integral stop 32. On this stud is provided a circular plate 33arranged eccentrically with respect to the stud and having retaininglugs 23%, and an integral handle 35. This eccentric is provided with aneccentric strap 37 arranged under the retaining lugs and handle andcarrying a hook 36. On the other part of the device is a spring clip 38for receiving the hook. This is shown in the form of a curved wiresecured to the casing A which is provided with a clip 39 for holding thehook in position and permitting it to spring slightly as the eccentricpart of the catch is operated.

In the form shown in Fig. 5, the parts are the same with the exceptionof the nozzle and connected parts. The chamber 22 is provided with awide nozzle 20 about at the center of the chamber and plates 23 extendupwardly at the two sides of this wide nozzle so as to form pocketsbeyond them in both directions. IVithin this nozzle is located a rotarybrush 40 extending down below the bottom of the nozzle. This brush isprovided with rolls ti on the ends contacting with rubber coveredrollers 42 which engage the floor and operate the rolls and brush. Inthis way any heavy particles that are thrown to one side by the brushare deposited on the two sides thereof out of the air current before theair passes into the ports 16 and the remainder of the operation is thesame as that heretofore described.

Although I have illustrated and described only two forms of theinvention I am aware of the fact that other modifications can be madetherein by any person skilled in the art without departing from thescope thereof as expressed in the claims, therefore I do not wish to belimited to the special forms shown, but

hat I do claim is 1. In a carpet cleaner, the combination of a casing,supporting wheels at one end thereof, a nozzle for supporting the otherend of said casing, means whereby the air and dust from the nozzle areconducted directly into the casing, and a dust separating chamberlocated directly under the casing between the nozzle and wheels andreceiving air and dust from the casing, said chamber having a bottomfiltering wall constituting the outlet thereof located near the plane ofthe bottoms of the wheels and nozzle.

2. In a carpet cleaner, the combination of a casing, a nozzle at one endand sup porting wheels at the other end, bellows in said casingconnected with said wheels for operation thereby, a dust chamber locatedunder the bellows between the nozzle and wheels and having a screenconstituting the bottom and the outlet thereof, said bellows havingvalves for the conduction of air to the bellows from the nozzle and tothe dust chamber from the bellows.

In a carpet cleaner, the combination of two casings detachably connectedto gether, one above the other, a bellows located in the upper casing,wheels connected with the upper casing for supporting one end of theapparatus and connected with the bellows for operating it, the lowercasing being open at the top and fitting the bottom of the upper casingand having a nozzle at the end opposite the wheels, a dust separatingchamber between the nozzle and wheels, and means whereby the air drawnin through the nozzle will be taken into the bellows and then forced outthrough the dust separating chamber.

i. In a carpet cleaner, the combination of two casings, an upper one anda lower one, operating wheels carried by one of the casings, the lowercasing having a nozzle at the end opposite the wheels and provided withan open-topped dust separating chamher having an external filteringwall, and means whereby the rotation of said wheels will cause air to bedrawn into the upper casing through said nozzle and forced out throughsaid dust separating chamber.

5. In a carpet cleaner, the combination of two casings, an upper one anda lower one, operating wheels carried by one end of the upper casing,the lower casing having a nozzle at the end opposite the wheels andprovided with an open-topped dust separating chamber having an externalfiltering wall, means whereby the rotation of said wheels will cause airto be drawn in to the u ried by said upper casing for operating thebellows, of a loWer casing having a nozzle, said nozzle communicatingWith said upper casing through one of said ports, a dust separatingdevice communicating With the bellows through the other port, and havinga screen constituting an external Wall, and means for detachablyconnecting said casings together.

7 In a carpet cleaner, the combination With a casing, and a suctioncreating device carried thereby, of a casing adapted to be detachablyconnected With the bottom thereof, and having a nozzle at one extremeend, and a dust separating chamber separated from the nozzle,- butarranged to receive air :and dust from said suction-creating device,

and provided With an external screen constituting one Wall and theoutlet thereof.

In testimony whereof I have hereunto set my hand, in the presence of twosubscribing Witnesses.

V V FRANK J. QUIST.

Witnesses:

ALBERT E. FAY,

C. FORREST WESSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

